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47A-Series 
| JA-6247A | JA-4247A | JA-5247A | JA-6947A | |
| 6.5"2-way rubber edge wrinkle finish paper cone | 4"2-way rubber edge wrinkle finish paper cone | 5.25"2-way rubber edge wrinkle finish paper cone | 6*9"2-way rubber edge wrinkle finish paper cone | |
| Voice coil | ASV25.9 (1") | ASV19.45 (0.76") | ASV19.45 (0.76") | ASV25.9 (1") |
| Impedance | 4 Ohm | 4 Ohm | 4 Ohm | 4 Ohm |
| Magnet | 80*15(10oz) | 70*10(5.3oz) | 70*12(6.4oz) | 100*18(20oz) |
| Sensitivity | 87dB ±3dB | 85dB ±3dB | 86dB ±3dB | 88dB ±3dB |
| Max power | 120W | 60W | 80W | 180W |
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